How to Raise More Grateful Children

Kathleen Cormier, a mother from suburban Minneapolis, is trying to instill a sense of gratitude in her sons, ages 12 and 17. But sometimes she wonders if other parents have given up.

Some of her sons’ peers, she says, are lacking in the basics of gratitude, such as looking adults in the eye to thank them. The saddest part, she says, is that…